Electronics Engineering

That is the resistance, measured in ohms.

Temporary magnet: good example is an electromagnet. It maintains magnetic attraction only so long as an electric current surrounds it. Permanent magnet: most common. Example: bar magnet. Will maintain magnetic properties for quite a while, although they can be eventually demagnetized.

It states that for satisfactory representation of the sampled signal the sampling frequency must be atleast equal to twice the highest input freq, which is called nyquist sampling. If its less than twice, undersamplin occurs resulting in distortion.

Generally 220v anything works easier or with less effort so can be cheaper to run. Appliances that run off 240V draw less current than 120V appliances so lighter wiring and fixtures can be used. However, 240V is more prone to arcing than 120V. Also, 240V is more likely to blow you away than 120V, whereas 120V is more likely to "grab" (Cause your muscles to involuntarily contract, i.e. making your hand grab a conductor) you. Also the US uses 120V because Edison originally used 100V. It was upped over the years to cope with demand. The US also has 240V in residential service for large appliances like ovens and dryers.

It shows reverse readings

The quantity you're looking for is current, measured in amps. Electrical appliances are generally rated by power (P, in watts) which is related to voltage (V, in volts) and current (I, in amps) by Joule's law:

P=V*I

So to calculate current, I=P/V, you need to know V and P. Voltage is 120 V in the US and 230 V in Europe/UK, and you'll have to look up the AC unit's power from it's label.

An ammeter is used to measure the current through a circuit and thus it must be in series with that load. Also, it's resistance is so low that it cannot be connected in parallel since it will result in a short circuit.

A Voltmeter is intended to measure the voltage across a circuit and thus it must be connected in parallel. It has a very high resistance such that connecting it in series with a circuit will lender the circuit useless or inoperative.

It is the thing that lights up when power is switched on.

A lamp's rated power only applies when the lamp is supplied with its rated voltage. If you connect the lamps in series, with the same supply voltage, then the lamps are no longer subjected to their rated voltage and, so, will not operate at their rated power.

it gets a bigger chance of giving wrong result.

ANSWER Absolutely not in series the meter will read the same no matter where it located in the series circuit. the same meter cannot be placed in parallel to measure.

Resistors resist amounts of the electricity flowing through the circuit.For example if the resister has these strips of colors on it in this order(red,green,blue) then the resister has 25,000,000 ohms. That means that the lamp(s)/ bulb(s) is(are) going to be very going to be very dim. Because, the more ohms the dimmer the light, the less ohms the brighter the light.

But we should get back on task. A resistor effects a circuit because it makes the lamp(s)/ bulb(s) brighter of dimmer depending on the amount of ohms they have.

An oscillator whose frequency is controlled by a magnetostrictive element.
Magnetostriction is a property of ferromagnetic materials that causes them to change their shape when subjected to a magnetic field. http://en.wikipedia.org/wiki/Magnetostriction ~MECHASUN~

Electric current as we usually describe it is the flow of electrons. Current is caused to flow by voltage, which can be looked at as "electrical pressure" that forces electrons to move. Currents can be made smaller or larger by decreasing the voltage across a fixed amount of resistance. As resistance is the quality of "resisting" or "limiting" current flow, we can change resistance to change current. For a give voltage, if we increase the resistance, we can make the current smaller, and if we decrease it, we can make current larger. In electronics, voltage equals current times resistance. E = I x R Also true is that current is equal to voltage divided by resistance. I = E/R As current equals volts divided by resistance, if we change one of them without changing the other, current will change. And in increase in voltage (with no change to resistance) will cause current to go up. The opposite is also true. Also, if we increase resistance (with no change in voltage), current will go down. And the opposite is true here, too.

make the rod longer the rod will shorten the period. The mass of the bob does not affect the period. You could also increase the gravitational pull.

Laplace = analogue signal

Fourier = digital signal

Notes on comparisons between Fourier and Laplace transforms:

The Laplace transform of a function is just like the Fourier transform of the same function, except for two things. The term in the exponential of a Laplace transform is a complex number instead of just an imaginary number and the lower limit of integration doesn't need to start at -∞. The exponential factor has the effect of forcing the signals to converge. That is why the Laplace transform can be applied to a broader class of signals than the Fourier transform, including exponentially growing signals. In a Fourier transform, both the signal in time domain and its spectrum in frequency domain are a one-dimensional, complex function. However, the Laplace transform of the 1D signal is a complex function defined over a two-dimensional complex plane, called the s-plane, spanned by two variables, one for the horizontal real axis and one for the vertical imaginary axis. If this 2D function is evaluated along the imaginary axis, the Laplace transform simply becomes the Fourier transform.

Unintentional bias means the source of the bias is in the data collection or sampling method. Its not done purposefully, but rather ignorantly.

coaxial cable speed is slower than fiber optic cable. it is main disadvantage of coaxial cable

DATA WILL BE SENT IN DUAL YET IN SERIES DATA WILL BE SENT IN ASINGLE LINE

The anode (negative) is red.

The cathode (positive) is black.

whoever wrote this^^^ is stupid and can't read.

while what they said is right, that only applies to wires.

with LEDs, the shorter wire i the negative, and the longer one is positive.

sometimes you might find one that's the same length, easy way to test them is to just put them to opposite ends of a battery.

In long shunt the shunt field winding is in parallel to both generator and series field. In short shunt the shunt field is in parallel to generator only.

A generator or an alternator.

ohmmeter has it's own power supply

It does :)